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H. C. HANSON y 1927.!{EATING s'rova USING LIQUID VAPORIZING FUEL 16,625

Criminal Filed April 13, 1925 2 sheetssh et-l a) ///5 ifT'OF/VE Y5 H. C. HANSON M 17, 1927 mums STOVE USING LIQUID VAPORIZING FULL Re. 16,625

Oriflinal Filed A ril 13. 1925 2 Sheets-Sheet 2 Reissued May 17, 1927.

umran STATES PATENT OFFICE.

HANS C.. HANSON, OI ALBERT LEA, MINNESOTA, ASSIGNOR TO AMERICAN GAS KA- CHINE COMPANY, OF ALBERT LEA, MINNESOTA, A CORPORATION OF MINNESOTA.

HEATING STOVE USING LIQUID VAPOBIZING FUEL.

Original No. 1,615,378, dated January 25, 1827, Serial No. 22,586, fled April 13, 1955. Application for reissue filed April 8, 1927. Serial No. 182,522.

This invention relates to a stove adapted to use liquid hydrocarbon fluid and particularly to a heating stove. It is often very desirable to have a comparatively small portable heating stove in a dwelling when the weather is not sufliciently cold to maintain a fire in the furnace and it ,is also desirable to have such a stove to heat some rooms which may beinsufiieiently equipped with furnace or other heating means.

It is an object of this invention to provide a simple, safe and efficient portable heating stove adapted to use liquidva orizing fuel,

' which stove is also neat and p easing in appearance.

It is a further object of the'invention to rovide a comparatively small portable heatmg stove comprising a casing, which stove has a detachable and removable liquid fuel tank and vaporizing tube which can be quickly and easily removed from said casing and quickly and easily re-inserted in place.

It 18 another object of' the invention to provide a heating stove having such a liquid fuel tank, which tank is disposed in the casing of the stove below the burners of the stove, draft passages being so arranged that cold air passes overthe tank and keeps the same in a cool condition.

It is also an object of the invention to pro vide such a heating stove using liquid vaiorizing fuel which comprises a burner casting or manifold constituting a mixing chamber, a vaporizing tube communicating with the mixing chamber, together with an auxiliary burner adjacent saidvaporizing tube for vaporizing the fuel.

It is still a further object of the inven* tion to provide a stove, as set forth in the preceding paragraph, in which .said manifold and mixing chamber has an air inlet which is provided with a movable member adapted to open and close said inlet.

It is still another object of the invention to provide ing having a lower chamber 1n which the liquid fuel tank is disposed and an upper chamber. in which the burner manifold constituting a mixing chamber and the vaporizing tube are dis )osed. 7

It is stillfurtiicr an object of the invena heating stove comprising a castion to provide a stove,'as set forth in the preceding paragraph in which one end'of the fuel tank and one end of the vaporizing tube project at the exterior-of the casing and extend through apertures therein, said tank having supporting and guiding means, and said mixing chamber having an opening alined with the aperture in the casing through which the vaporizing tube extends whereby said tank and vaporizing tube can he slid into ;place in the casing and the va porizing tube will properly be connected with the mixing chamber.

It is a further object of the invention to provide a heating stove having a casing in which are normally disposed a liquid fuel tank and vaporizing tube, said parts projecting at the exterior of the casing and having regulating or control means disposed at the exterior of the casing.

These and other objects and advantages of the invention will be fully set forth in the following description. made in'connecvtion with the accompanying drawings in which like reference characters refer to the same parts throughout the different views and in which v Fig. 1 is a view in front elevation of the stove;

Fig. 2 is a view in end elevation of the stove, as seen from the right of Fig. 1;

Fig. 3 is a horizontalsectiou taken on the line 3-3 of Fig.1, as indicated by the arrows; J i

. Fig. 4 is a top plan view of the stove Fig. 5 is a view in vertical section of the stove taken on the line 5-5 of Fig. 1, as indicated by the arrows Fig. 6 is a vertical section taken on theline 6-36 of Fig. 5, as indicated by the arrows; an 4 Fig. 7 is a partial horizontal section on the l'OVVS.

-Referring to the drawings, one form of] stove, involving the present invention is illustrated comprising a bottom or support ing plate '7. This plate is formed as an o enwork' rectangular frame having leg ortions/f at the four corners thereof. he frame 7, as shown in Figs. 5 and 6, also has a flange "T extending thereabout and a casing member 8 preferably formed of sheet metal rests upon the frame '7 and is disposed within said flange 7". The frame 7, along its rear side, has upstanding spaced lugs T. and the rear part of the casing 8 is disposed between said lugs and the flange 7 As shown inFig. 3, the c: sing 8 is rectangular in shape, having a rear side and end walls lhus being open at the front and the end Walls, at their forward portions are curved outwardly to form cylindrical portions 8, the flange 7*, on the frame '1' and at the top oi? the cylindrical front legs 7 also being centrally formed and extending about the bottoms oi said portions 8". The portions 7 thus give the ell'cct. ct posts. at the sides oi the casing. At the top of the stove taetop plate 9 which rests upon the cusing- 8 and has a llangie 5} which extends around the exterior of said casing 8 at its top edge. The top plate 9 is ot'ornamcntal shape in appearance, as shown in Figs. 1, l and 5, and. has a curved seIni-cylinc rical portion 9 adjacent its rear end, which por tion is provided. will open slots 9". The top plate 9 and the frame 7 are tied together by bolts 10' extending down at, the rear inside corners casing 8 and having nuts on their threaded end portions, the top not 11 resting on top of the casing 9, while the not at the lower end disposed beneath the front plate 7. The parts?) and 7 are also tied together at the front by bolts 12 which & extend centrally through the cylindrical portions 8*. The bolts 12 havenuts thread ed on their lower ends disposed at the bot tom of plate '2' "\1 li.ll1 the front legs 7 and said bolts at their top end have ornamental nuts or knobs l3 threaded "thereon. A lnirner ayingor manifold l4 provided which extend ross the casiiu; and is gen ape of an elongated hollow 'ila'r torzn in cross section. Iiaid nscni. .M plate 14 at its top side provided with depending logs or flanges 14* which rest. against the inside oi casing 8 at its ends and a re secured thereto by the head ed and nutted bolts 15. Plate 14-" has a plurality of openings l i? tliercthrongh illustrated as circul: in shape having inwardly extending ll-an a at their bottoms and perforaled bin-noel iii; l5 of tire clay or other refractory matena are disposed in openings 14 and rest. upon said flanges. The plate i l also spaced in? or ribs ll upstandn thcref ion at. the ends of and between the ope-oi e i, and ugn'iglrt hollow burner or aine di 1;: members 16 also formed of retract rial are disposed on the. plain. il 4 lugs 14.. While the rha fies, in the i ted,

men: cinljnm men; they are simwn shape in horizontal cross section, somewhattapered toward their upper ends, being closed at their rear and sides and having an openwork front formed by diagonal ribs lfi cxlcnding thcreacross in opposite directions. Said members also preferably have pointed projections 16 projecting forwardly from their rear Walls and rcarwardly from the ribs 16. The members 16 also each have a groove 16 extending transversely across their top portions and a bail 17 at its front portion disposed in said grooms, the side portions of said bail extending rear 'ardly, being pivotally mounted in the end Walls of a reflector plate 18 substantially at "the rear corncrs of said plate. thus he swung upwardly about its pivoted ends for the -remo :11 or insertion of the members 16. The plate. 18 as clearly shown in Fig. 3, has its rear wall spaced a short distance forward of therearwall of easing 8 and has its side portions projecting forwardly in an outwardly inclined direction substantially to the front of the casing 8 and in contact therewith at. the cylindrical portions 8. The bottom of plate 18 contacts with" inclined lugs 14 proycctingnpwardly from the top of manifold 14 or plate 14.

The plate 19 is also provided which coversthe to of plate 14* and has a depending front ar: e. extending down over the edge of said p ate, said plate v19 having, short lugs 19" projecting upwardly at the'- inner sides of plate 18 and these lugs and late 18 are connected'to the lugs 14 by hea ed and matted bolts 20. The to deflecting plate 18* is provided inclining orwardl and upwardly from adjacent the top 0 plate 1.8 just above the bail 17. Said plate 18 has 'a vertical portion extending along the front The bail 17 can III) members 21 andQi form aguarclfor the burner part of the stove. A plate or auxiliary casing 23 is provided having a rear wall 523 spaced from the rear of manifold 14 and substantially in line with the rear portion of plate 18. The bottom of casing extends beneath the inanifold 14 and is spaced therefrom, said casing 23 having end walls in contact with the'inner sides of lugs 14 and connected. thereto by the bolts 15.

Casing 8 is provided with a front door 24' which extends from the plate 19 to the bob torn front plate 7 and has a hinged gpintle 2%", the ends of which are pivoted 'in' thc then bent outwardly a short 1 to hold the latter casing in position.

burner portions 8 of easing 8. Said door 24 is provided with a knob handle. 25 and has a sprin latch 26 adapted to spring over and be held in place by a de ending latch lug 14' on late 14". It will 1e noted that the front e ge of the bottom of casing 23 is spaced from the door 24. The manit'old'14 has a forwardly rojecting portion 14 at one end, namely, t e left hand end, as shown in Fig. 6, and a drain cock 27 is provided extending from said portion 14 through the bottom of casing 23. The )ortion 14 also has a forwardly projecting ange 14 which has an opening '14 therethrough, which opening is cylindrical at its inner end but conical or flaring at its outer end. The said extension 14' has an opening at 14" at its front to form an inlet openin r for air into themanifold 14, which mani old also constitutes a mixing chamber and a swinging shutter or valve member 28 is pivoted at one end of said opening and has a handle 28 by which it can be swung to close said opening, said opening having a bottom flange 14 projecting therefrom with which, and the flange 14", said member 28 co-operates. An auxiliary burner 29 is provided which is connected to the manifold 14 and this burner projects u wardly in an inclined direction so that the ame thereof will play upon a vaporizing tube 30 which pro ects into the opening 14 at one end and extends through an o ening 8 in the casing 8 at its other end. he plate 19" has an o ening 14" therethrough toward which the urner 29 is projected. A liquid fuel tank 31 is pmvided which is supported and guided upon a member 32; W ile this member may be of various sha s and be variously formed, in the embo iment of the invention illustrated, it is shown as of channel shape .made from a rectangular plate having its side edges bent upwardly at ri ht' angles and distance. The member 32 is bolted at its ends by the headed and nutted bolts 33 to the frame member 7 and its ends abut against the ends of casing 8 at the bottom of the latter andt end he member 32 thus forms a trough or supporting and guiding means for tank 31 and said tank projects atone end through an opening 8 in casing 8. The tank is rigidly connected with the vaporizing tube 30 by a right angle extension 30 of said tube. The tube 30 is provided with a shut-off valve 34 and said tube'flO has an opening at its inner end with which a needle valve (not shown) cooperates. which valve is regulated by the valve wheel 3."), the valve 34 and the valve being disposed outside of the casing 8.

The tank 31 is provided with a filling memher 31 which is also provided with a spring valve so that air can be pumped into said tank. The stove is provided with a suitable in the tank is under prossurt' the valves Il -l and 35 at all times beingclosed. The tank 2-51 and tube 30 \"Ill again be placed inUie using. Owing to the fact that the opening 8" is alined with the opening 141 and the tank 31 is guided on the member 32, the end of the vaporizing tube 30 need only be guided into the opening 8 after tank 31 is partly inserted through opening 8 and the tank and tube then merely pushed inwardly. The inner end of tube 30 will then enter and seat properly in the opening 14. The tank and vaporizing tubebeing in place, the door is opened and the stove initially start ed by applying a torch beneath the vapor-- izing tube 30, the valve 34 being previously opened as well as valve 35. It is desirable to have a rich mixture during this preliminary lighting of the stove andat this time the member 28 will be swung to substantially close the opening 14". A combustible mixture is soon formed in the mixing chamber of the manifold 14 and rises through the perforations in the disks 15 and into the members 16. This mixture will be ignited at the menibeis 16. As soon as the combus- 4 tible mixture is thus formed and the burners ignited said mixture will issue through the auxiliary burner 29, and be drawn up ward through opening 14". The flame will ignite this mixture and pass back to the burner 29 so that said burner 29-is also ignited. The flame from this burner plays on the tube 31) and continues the vaporizing so that the vaporized fuel is continually supplied to the mixing chamber through the opening 14. 'lhe stove now being started the member 28 can be swung to its open )0- sition and air is supplied to the mixing chamber and manifold 14 through the opening 14". The size and intensity of the flame used Can be regulated by manipulation of the valve 35. When the stove is star-ted the door 24 will be closed. The air passing into the mixing chamber enters the bottom of the stove through the plate 7 at each side of member 32. There will also be an up ward current of air induced owing to the heat above the plate 14", which current will pass through the passage between the plate 18 and the rear of the casing 8 and pass out through the openings 9. All of this air thus passing upwardly through the stove, as statcoinpiu'alivcly ilmi' paris an? has than a. gas s'mvc.

an electric or stove,

38 stove is li'ein ccmmerciu 6 Y m tails,

parts and COZHbiHiRiiORE-SGi m said casing i.

umber, saiil vapmizing i3.

ml, nntcis ili l'lli? bottom at each Sliifi 0i incinlior 32 and thus passes around the 2110i (mil:

31 illlll this tank is thus; kept pei'fiwrtiy (100i liy tlic. cntrnncc of this cool air. A. 2cm- 6 'luislililc mixture is continuously formed in the mvaniicr i4 and continuously suppiiml To the burners if). The heat 'fg'oin the 'iilil'iiti 16 will be radiated at the front (if tin and the i-cficciing pixies 18 and 18 w' healing effect is li'ns obtained. ill; will, if

course. iIlLE undci'sinmi. that the ii: it 531 can be rcnmvctl 'i'm' a 119w siiiiply 0i l: .1 when.

Fmm llic :ibm'c (lcscripi'ilm ii is 54mm z'j m :ippiu-zml lms pl'OVlL'iWi :1 wry simple mar! 1- V J ziain itml in T19?" plcasing appearance. The lllllilfijj pmw'z iii the Steve is superim' in? rain-"i" size using the mil:

this siove nmcii can be transpmlcil I placed in wliaiicvcz room and is no}; ii

r n high degree of utiliiiy in any heat is dcisirerl. and it where there is in Sup n'mtcrml such is o .iy been amply (icmansimizeu in found in be very successful It will, of coin-3a he and I'lOllS changes may be made arrangement and pic parts Without departing iii-"m n :ipplicants invcniiou, wiii ml; consists in :2 zicvicc out Hie objects above sci;

unrl define i in the appcmicii (1 aiiim Vililt is ciaimcni l. A heating stove a rigid frame cciiiipri 7 121;; open liuchaiiie :fuei l'z for said will slidubie, mic an aperture "i.

snitl stove, a w: siaid tank l! wall, a mum above said tam Suppm 'upcisu i i! with said mixing" ciizimiiei by said unlawful-1L 72m nppw casing: in i'i'um'; 0i szmi I. 2. A healing stove lizw a, detachable fuel tank in said casing, a s1: pmi: for said tank 011 which it is longituciinull .slik'luhi-s- (me and Wall of said casing having an aperture tliei'cti mug-l1 thlffillgl) which said tank is movable, a vaporizing iilic cmincctcml in said tank and projecting within said cml wall, a manifold supported in said casing above said tank comprising a mixing chamber with which said vaporizing: i'ialic cmnmunicatcs. burners carried by min iiianii'clbl, :1 iicrizoniial. partition in said casing:- fliiii continued. vci'iically in the real :11 '[ih niuccazii'zi ,n'mnifnlal 21ml spaced from ilm sail (Pi said casing, said casing ii.

l' min ii 'ilil'ri being ripbn. i. iicziiim hiLOYC liming in cumiiinniimi, L' *izinc cum n 021g mi iipi-igii casing, z'iiic iucl illiii in mid c'isiiig, a supmi i'zmk (m which if; IS i-fmgit dicini avail iii iei casing li'm'gii 'Wi'iiljil said tank extending 1? tube hav- Gilifi dfi 0f itiaig; n w; for said va- A npcraing handle sing and :1 mani- 'l almvc said iscifion with in cla shaving Kimmie;

rim mt said tnnkio farm the movement thereof inixi' iiic czism v having in combination, 2%? cc i itiig an. uprightcasing, fuel tank in said casing, n, "(1 tank" mpcirizmg tube piziic nilingr wit-ion and s mmer:

mid

casing,

7. A heating stove having in combination,

a frame comprising an upright casing, the Iuwm' part; (if Saul casing forming a chumher, a detachable 11ml tank lncaterl in an! 5 chamber, a support for said tank, :1 vapor-- mug tulw aliachml h) 121 1d tank, a manifold 1n szlld QilSlllg above sand tank comprising a mixing chamber with which said vaporizing tube mmmunicates and. a regulating valve fnr said vapmizing tube h iving m; 10

operating handle without said CFiSiHg= In testimony hereof I afiix my signature HANS G. HANSGN. 

